Site Sentinel L1-001 - Ultra low power, cellular data logger with integrated ultrasonic level sensor.

The L1 is a specific variant of the Site Sentinel® data logger and RTU family, providing highly-reliable, direct-to-host non-contact level monitoring in a single package, aimed at water utilities, city councils, agriculture, tidal, flood warning and irrigation sectors.

The Site Sentinel® L1 is designed for direct mounting above a water source such as a dam, channel, creek, basin, tank or manhole.

The Site Sentinel® L1 will then measure the water level with +/- 1mm accuracy and is non-contact, ideal in situations where deployment of other level sensing techniques is not possible. Swift deployment is made possible thanks to the built-in front panel mounted ultrasonic level sensor, a true single box design that requires no external hardware.

Data is stored internally on non-volatile flash memory with upstream communications provided using an internal 4G cellular modem, permitting use on CAT-M1 and NB-IoT Networks worldwide. Host compatibility is ensured with integrated support for DNP3.0 slave and FTP data protocols. Complete control is handed to the user to allow custom data reporting and wake-from-sleep regimes to be configured to balance battery life against data logging and data reporting requirements.

Battery life of 5 years plus, depending on device configuration and reporting regime.

Remote configuration and device management is supported via leading industry SCADA applications, permitting device configuration and upgrades without requiring site visits. Remote device firmware download capability is provided via FTP file transfer.

The device is housed in a low-profile, robust ABS-plastic enclosure that is UV stabilised and rated at IP68, allowing for direct outdoor installation, capable of withstanding brief submersion.